[Lymphoepithelioma of the larynx].

Non-nasopharyngeal Lymphoepithelioma is a tumor of undifferentiated non-keratinizing cells enclosed in an lymphocytic stroma. The lymphoid tissue does not participate in the tumor process. Its tendency is to precociously spreading in the lymph nodes and viscera, but shows a good radiotherapeutic response. Unlike the nasopharyngeal lymphoepithelioma there is no etiological relationship with the Epstein-Barr virus, in spite of the histological similitudes, therefore the pathogenesis must be different in each. Discrimination between lymphoepithelioma and other neoplasms of the epithelial lineage is important in order to indicate the treatment and also to provide prognostic information.